<!DOCTYPE html>
<meta charset="utf-8" />
<title>WebSocket Test</title>
<script language="javascript" type="text/javascript">

    var wsUri = "ws://localhost:9527/echo";
    var output;

    function init()
    {
        output = document.getElementById("output");
        testWebSocket();
    }

    function testWebSocket()
    {
        websocket = new WebSocket(wsUri);
        websocket.onopen = function(evt) { onOpen(evt) };
        websocket.onclose = function(evt) { onClose(evt) };
        websocket.onmessage = function(evt) { onMessage(evt) };
        websocket.onerror = function(evt) { onError(evt) };
    }

    function onOpen(evt)
    {
        writeToScreen("CONNECTED");
        doSend("WebSocket rocks");
    }

    function onClose(evt)
    {
        writeToScreen("DISCONNECTED");
    }

    function onMessage(evt)
    {
        writeToScreen('<span style="color: blue;">RESPONSE: ' + evt.data+'</span>');
        websocket.close();
    }

    function onError(evt)
    {
        writeToScreen('<span style="color: red;">ERROR:</span> ' + evt.data);
    }

    function doSend(message)
    {
        writeToScreen("SENT: " + message);
        websocket.send(message);
    }

    function writeToScreen(message)
    {
        var pre = document.createElement("p");
        pre.style.wordWrap = "break-word";
        pre.innerHTML = message;
        output.appendChild(pre);
    }

    window.addEventListener("load", init, false);

</script>

<h2>WebSocket Test</h2>

<div id="output"></div>